AIEHS Certified Hazardous Materials and Waste
Management CHMWMP Exam
Question 1. Which physical property is most critical in determining the volatility of a hazardous
chemical during an emergency spill?
A) pH
B) Vapor pressure
C) Boiling point
D) Density
Answer: B
Explanation: Vapor pressure indicates how readily a chemical will evaporate; higher vapor
pressure means greater volatility and inhalation risk.
Question 2. The Global Harmonized System (GHS) primarily standardizes which aspect of
hazardous materials management?
A) Disposal methods
B) Labeling and classification
C) Personal protective equipment
D) Emergency response
Answer: B
Explanation: GHS provides universal criteria for classifying and labeling hazardous chemicals to
ensure consistency and safety worldwide.
Question 3. Which of the following is a characteristic hazardous waste under RCRA?
A) Waste oil
B) Aqueous solution with pH 2
C) Used batteries
D) Empty containers
Answer: B
,AIEHS Certified Hazardous Materials and Waste
Management CHMWMP Exam
Explanation: Aqueous solutions with pH ≤ 2 are classified as corrosive, one of the four
hazardous waste characteristics.
Question 4. The “P-list” in hazardous waste regulations refers to:
A) Toxic industrial chemicals
B) Acute hazardous wastes
C) Universal wastes
D) Non-hazardous industrial wastes
Answer: B
Explanation: The P-list contains acutely hazardous wastes that are extremely dangerous even in
small amounts.
Question 5. Which is NOT a primary route of exposure for hazardous substances?
A) Inhalation
B) Injection
C) Osmosis
D) Dermal contact
Answer: C
Explanation: Osmosis is not a route of entry; the main routes are inhalation, ingestion, dermal,
and (less commonly) injection.
Question 6. A waste with a flash point of 50°F is classified as:
A) Non-hazardous
B) Ignitable
C) Corrosive
D) Reactive
,AIEHS Certified Hazardous Materials and Waste
Management CHMWMP Exam
Answer: B
Explanation: Wastes with a flash point below 140°F are considered ignitable and hazardous.
Question 7. The UN hazard class for “Flammable Liquids” is:
A) 1
B) 3
C) 5
D) 6
Answer: B
Explanation: Flammable liquids are classified under UN Class 3.
Question 8. Which regulatory act governs the management of PCBs in the United States?
A) FIFRA
B) CERCLA
C) TSCA
D) RCRA
Answer: C
Explanation: The Toxic Substances Control Act (TSCA) specifically regulates PCBs.
Question 9. A facility generating 1200 kg of hazardous waste per month is a:
A) VSQG
B) SQG
C) LQG
D) Exempt generator
Answer: C
, AIEHS Certified Hazardous Materials and Waste
Management CHMWMP Exam
Explanation: Large Quantity Generators (LQGs) produce >1000 kg/month.
Question 10. Which chemical property is most relevant for determining a material’s corrosivity?
A) Solubility
B) pH
C) Odor threshold
D) Molecular weight
Answer: B
Explanation: Corrosivity is typically determined by pH; highly acidic or basic substances are
corrosive.
Question 11. The primary document for tracking hazardous waste shipments is the:
A) Bill of lading
B) Uniform Hazardous Waste Manifest
C) MSDS
D) Shipping invoice
Answer: B
Explanation: The manifest is required for cradle-to-grave tracking of hazardous waste
movements.
Question 12. The “K-list” in hazardous waste regulations refers to:
A) Commercial chemical products
B) Wastes from specific industries
C) Universal wastes
D) Laboratory chemicals
Answer: B
Management CHMWMP Exam
Question 1. Which physical property is most critical in determining the volatility of a hazardous
chemical during an emergency spill?
A) pH
B) Vapor pressure
C) Boiling point
D) Density
Answer: B
Explanation: Vapor pressure indicates how readily a chemical will evaporate; higher vapor
pressure means greater volatility and inhalation risk.
Question 2. The Global Harmonized System (GHS) primarily standardizes which aspect of
hazardous materials management?
A) Disposal methods
B) Labeling and classification
C) Personal protective equipment
D) Emergency response
Answer: B
Explanation: GHS provides universal criteria for classifying and labeling hazardous chemicals to
ensure consistency and safety worldwide.
Question 3. Which of the following is a characteristic hazardous waste under RCRA?
A) Waste oil
B) Aqueous solution with pH 2
C) Used batteries
D) Empty containers
Answer: B
,AIEHS Certified Hazardous Materials and Waste
Management CHMWMP Exam
Explanation: Aqueous solutions with pH ≤ 2 are classified as corrosive, one of the four
hazardous waste characteristics.
Question 4. The “P-list” in hazardous waste regulations refers to:
A) Toxic industrial chemicals
B) Acute hazardous wastes
C) Universal wastes
D) Non-hazardous industrial wastes
Answer: B
Explanation: The P-list contains acutely hazardous wastes that are extremely dangerous even in
small amounts.
Question 5. Which is NOT a primary route of exposure for hazardous substances?
A) Inhalation
B) Injection
C) Osmosis
D) Dermal contact
Answer: C
Explanation: Osmosis is not a route of entry; the main routes are inhalation, ingestion, dermal,
and (less commonly) injection.
Question 6. A waste with a flash point of 50°F is classified as:
A) Non-hazardous
B) Ignitable
C) Corrosive
D) Reactive
,AIEHS Certified Hazardous Materials and Waste
Management CHMWMP Exam
Answer: B
Explanation: Wastes with a flash point below 140°F are considered ignitable and hazardous.
Question 7. The UN hazard class for “Flammable Liquids” is:
A) 1
B) 3
C) 5
D) 6
Answer: B
Explanation: Flammable liquids are classified under UN Class 3.
Question 8. Which regulatory act governs the management of PCBs in the United States?
A) FIFRA
B) CERCLA
C) TSCA
D) RCRA
Answer: C
Explanation: The Toxic Substances Control Act (TSCA) specifically regulates PCBs.
Question 9. A facility generating 1200 kg of hazardous waste per month is a:
A) VSQG
B) SQG
C) LQG
D) Exempt generator
Answer: C
, AIEHS Certified Hazardous Materials and Waste
Management CHMWMP Exam
Explanation: Large Quantity Generators (LQGs) produce >1000 kg/month.
Question 10. Which chemical property is most relevant for determining a material’s corrosivity?
A) Solubility
B) pH
C) Odor threshold
D) Molecular weight
Answer: B
Explanation: Corrosivity is typically determined by pH; highly acidic or basic substances are
corrosive.
Question 11. The primary document for tracking hazardous waste shipments is the:
A) Bill of lading
B) Uniform Hazardous Waste Manifest
C) MSDS
D) Shipping invoice
Answer: B
Explanation: The manifest is required for cradle-to-grave tracking of hazardous waste
movements.
Question 12. The “K-list” in hazardous waste regulations refers to:
A) Commercial chemical products
B) Wastes from specific industries
C) Universal wastes
D) Laboratory chemicals
Answer: B
